Great article, and a very cool looking bike. To the armchair bike engineer in me, it looks like a 68 degree seat tube angle, although the forward-offset seatpost steepens that up a few degrees in practice. The headtube angle looks about 72-73 degrees and the fork has a ton of rake. Definitely low-trail. I wonder what the wheel and tire size are. Not even close to a fistfull of seat post showing. Overall the proportions and aesthetics are perfect. That's something I try to achieve with my bikes. No ungainly, super-tall stem quills, monster seat posts, etc. I don't always achieve that, fit and performance take precedence, but it's a goal.
Chris